YBC 7289
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YBC 7289 is a Babylonian clay tablet notable for containing an accurate sexagesimal approximation to the square root of 2, the length of the diagonal of a unit square. This number is given to the equi
YBC 7289 OBV REV
Babylonian clay tablet YBC 7289 with annotations. The diagonal displays an approximation of the square root of 2 in four sexagesimal figures, 1 24 51 10, which is good to about six decimal digits. 1 + 24/60 + 51/602 + 10/603 = 1.41421296... The tablet also gives an example where one side of the square is 30, and the resulting diagonal is 42 25 35 or 42.4263888...
Babylonian mathematics
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Babylonian mathematics is the mathematics developed or practiced by the people of Mesopotamia, as attested by sources surviving mainly from the Old Babylonian period to the Seleucid period from the la
YBC 7289
…a digital model of the tablet, suitable for 3D printing. The original tablet is currently kept in the Yale Babylonian Collection at Yale University. Babylonian mathematics Plimpton 322…
Clay tablet, mathematical, geometric-algebraic, similar to the Pythagorean theorem. From Tell al-Dhabba'i, Iraq. 2003–1595 BC. Iraq Museum
Clay tablet, mathematical, geometric-algebraic, similar to the Euclidean geometry. From Tell Harmal, Iraq. 2003–1595 BC. Iraq Museum